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SDR Console with Airspy R2

George Stein - NJ3H
 

Greetings.

I hope someone can help me with this issue.

For the first time I am using my R2 with SDRC.  I want to get it working to use with the satellite capability in SDRC.

As you can see on the attached pictures, it appears that there is too much gain.  Where in SDRC is a setting to cut back on the RF gain.

I have also attached a picture of the R2 using SDR# for comparison.

Please let me know if any other screenshots would be helpful.

Thanks for the help.

Regards,
George
jdow
 

To a degree you are comparing apples and oranges. Zoom SDRC out all the way so it is showing roughly the same bandwidth as SDRSharp. Then don't cut off the edges of SDRC in your pictures. The edges contain interesting information.

Make sure in your definitions that the sample rate is set to 10 Msps. That''s called "Bandwidth" in the select radio dialog and definitions:


I (perhaps rashly) presume that is the same AirSpy R2 on the same antenna. For comparison's sake showing the gain settings on the AirSpy R2 would be helpful, I wish Simon showed the zoom factor on the status bar or the header bar. In general I get the same performance in practical SNR terms on both programs. I do get a whole lot more of the AirSpy performance on SDRC with its matrix and multiple receivers.

{^_^}

On 20211104 13:46:07, George Stein - NJ3H via groups.io wrote:

Greetings.

I hope someone can help me with this issue.

For the first time I am using my R2 with SDRC.  I want to get it working to use with the satellite capability in SDRC.

As you can see on the attached pictures, it appears that there is too much gain.  Where in SDRC is a setting to cut back on the RF gain.

I have also attached a picture of the R2 using SDR# for comparison.

Please let me know if any other screenshots would be helpful.

Thanks for the help.

Regards,
George
SDR sharp.jpg

Screenshot-2021-11-04-133622.jpeg

Screenshot-2021-11-04-133651.jpeg

George Stein - NJ3H
 

Hi JoAnne,

Thanks for your reply.  The new SDRC picture is at 10 MHz bandwidth.  The new SDR# is at 8 MHz bandwith.  The audio has a lot of hiss in it using SDRC, while SDR# is crystal clear.

Yes I am using the same antenna.

So I am looking for the gain control in SDRC?  I just haven't found it yet.
George Stein - NJ3H
 

I finally found the setting.  Need to clean my glasses more often.

Any suggested settings to maximize reception and quality using Console will be appreciated, JoAnne.  Have you used the satellite capability in Console as of yet?

Thanks,

George
Kriss Kliegle KA1GJU
 

I find I have to run the gain on my R2 at 15 to 17 to get reasonable signal strengths, and clear reception.
Here's the FM band on a 2M/440 antenna up 50' on my tower:



73 Kriss KA1GJU
jdow
 

You are running SDRC at a substantially higher gain, I notice. (10 vs 6.)

{^_^}

On 20211104 15:38:34, George Stein - NJ3H via groups.io wrote:

Hi JoAnne,

Thanks for your reply.  The new SDRC picture is at 10 MHz bandwidth.  The new SDR# is at 8 MHz bandwith.  The audio has a lot of hiss in it using SDRC, while SDR# is crystal clear.

Yes I am using the same antenna.

So I am looking for the gain control in SDRC?  I just haven't found it yet.
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jdow
 

I have not used the satellite capability.
{^_^}

On 20211104 16:00:53, George Stein - NJ3H via groups.io wrote:

I finally found the setting.  Need to clean my glasses more often.

Any suggested settings to maximize reception and quality using Console will be appreciated, JoAnne.  Have you used the satellite capability in Console as of yet?

Thanks,

George

Simon Brown
 

George,

 

  1. Adjust the contrast (RHS), just click [Auto], this will help a lot, then post a screenshot.
  2. Adjust the range with the Low and High options which are shown when the mouse is moved over the spectrum / waterfall.
  3. You seem to have a lot of gain which I can’t explain – the Liner gain setting of 10 is good. It may be noise, the new screenshot will help.
  4. SDR# shows relative to full scale, a different concept.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of George Stein - NJ3H via groups.io
Sent: 04 November 2021 22:39
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console with Airspy R2

 

Hi JoAnne,

Thanks for your reply.  The new SDRC picture is at 10 MHz bandwidth.  The new SDR# is at 8 MHz bandwith.  The audio has a lot of hiss in it using SDRC, while SDR# is crystal clear.

Yes I am using the same antenna.

So I am looking for the gain control in SDRC?  I just haven't found it yet.


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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
George Stein - NJ3H
 

Hi Simon,
thanks for your reply (and for the one about satellite height as well)

Hopefully the attached picture will help.

All the best!

Regards,
George, NJ3H
Redmond, Oregon USA





On Friday, November 5, 2021, 12:51:42 AM PDT, Simon Brown <simon@...> wrote:


George,

 

  1. Adjust the contrast (RHS), just click [Auto], this will help a lot, then post a screenshot.
  2. Adjust the range with the Low and High options which are shown when the mouse is moved over the spectrum / waterfall.
  3. You seem to have a lot of gain which I can’t explain – the Liner gain setting of 10 is good. It may be noise, the new screenshot will help.
  4. SDR# shows relative to full scale, a different concept.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of George Stein - NJ3H via groups.io
Sent: 04 November 2021 22:39
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console with Airspy R2

 

Hi JoAnne,

Thanks for your reply.  The new SDRC picture is at 10 MHz bandwidth.  The new SDR# is at 8 MHz bandwith.  The audio has a lot of hiss in it using SDRC, while SDR# is crystal clear.

Yes I am using the same antenna.

So I am looking for the gain control in SDRC?  I just haven't found it yet.


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
Simon Brown
 

This looks OK to me although I use the dBm scale for broadcast rather than S units.

 

Ribbon Bar, View, Spectrum, Scale.

 

Also adjust High and Low a bit…

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of George Stein - NJ3H via groups.io
Sent: 05 November 2021 22:29
To: main@sdr-radio.groups.io
Subject: Re: [SDR-Radio] SDR Console with Airspy R2

 

Hi Simon,

thanks for your reply (and for the one about satellite height as well)

 

Hopefully the attached picture will help.

 

All the best!

 

Regards,

George, NJ3H

Redmond, Oregon USA

 

 

 

 

On Friday, November 5, 2021, 12:51:42 AM PDT, Simon Brown <simon@...> wrote:

 

 

George,

 

  1. Adjust the contrast (RHS), just click [Auto], this will help a lot, then post a screenshot.
  2. Adjust the range with the Low and High options which are shown when the mouse is moved over the spectrum / waterfall.
  3. You seem to have a lot of gain which I can’t explain – the Liner gain setting of 10 is good. It may be noise, the new screenshot will help.
  4. SDR# shows relative to full scale, a different concept.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of George Stein - NJ3H via groups.io
Sent: 04 November 2021 22:39
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console with Airspy R2

 

Hi JoAnne,

Thanks for your reply.  The new SDRC picture is at 10 MHz bandwidth.  The new SDR# is at 8 MHz bandwith.  The audio has a lot of hiss in it using SDRC, while SDR# is crystal clear.

Yes I am using the same antenna.

So I am looking for the gain control in SDRC?  I just haven't found it yet.


--

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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.

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